New predictions suggest that the population will rise by another 4 billion by the end of the century.
The remains of an adult male lion were found stuffed inside a freezer by an environmental health officer.
Scientists have determined that oxygen-producing life forms appeared around 3 billion years ago.
Russia's space agency Roscosmos is seeking $440 million to develop inflatable space habitats.
Huge numbers of the organisms known as 'by-the-wind sailors' have been washing up on the West Coast.
Burrowing worms may have had a profound impact on the development of life over 500 million years ago.
The European spacecraft has finally reached its destination after traveling over 6 billion kilometers.
Authorities have been attempting to identify a cat-like creature spotted on CCTV camera in Norwalk.
Researchers have been piecing together how therapod dinosaurs eventually became today's birds.
The air was teeming with the insects following a mass hatching from the nearby Mississippi River.
The extremely well preserved fossil remains of an ancient shrimp-like predator have been discovered.
The ocean turned a shade of black as up to 100 million fish swarmed the coastline off La Jolla.
A meteor shower 470 million years ago is thought to have initiated an explosion of life on Earth.
Originating 240 million light years away, the signal could be the best evidence yet of dark matter.
A new genetically engineered type of banana could help to solve vitamin A deficiency across Africa.
An ancient organism believed to have died out 4 million years ago has been found near New Zealand.
Palaentologists have discovered the fossil remains of a large fish dating back 423 million years.
The English soprano is set to pay $54 million for a ten day stint aboard the International Space Station.
A group of astronomers has estimated the number of habitable planets in our galaxy for the first time.
Two behemoths of the prehistoric world may have battled for dominance in rivers 60 million years ago.